org.jpox.store.poid
Class UUIDHexPoidGenerator

java.lang.Object
  org.jpox.store.poid.AbstractPoidGenerator
      org.jpox.store.poid.AbstractUIDPoidGenerator
          org.jpox.store.poid.AbstractUUIDPoidGenerator
              org.jpox.store.poid.UUIDHexPoidGenerator

All Implemented Interfaces:

PoidGenerator, javax.jdo.datastore.Sequence

public class UUIDHexPoidGenerator

extends AbstractUUIDPoidGenerator

Poid generator for a UUID hexadecimal format. Results in Strings of length 32 characters, containing the IP address of the local machine as per the JDO2 spec section 18.6.1.

Version:

$Revision: 1.3 $

Field Summary

Fields inherited from class org.jpox.store.poid.AbstractUUIDPoidGenerator

counter, IP_ADDRESS, JVM_UNIQUE

Fields inherited from class org.jpox.store.poid.AbstractPoidGenerator

defaultBlockSize, LOCALISER, name, poidBlock, properties

Constructor Summary

UUIDHexPoidGenerator(java.lang.String name, java.util.Properties props)
Constructor.

Method Summary

protected java.lang.String

getIdentifier() Create an identifier with the form "IIIIIIIIJJJJJJJJHHHHLLLLLLLLCCCC".

Methods inherited from class org.jpox.store.poid.AbstractUUIDPoidGenerator

getCount

Methods inherited from class org.jpox.store.poid.AbstractUIDPoidGenerator

reserveBlock

Methods inherited from class org.jpox.store.poid.AbstractPoidGenerator

allocate, createRepository, current, currentValue, getName, next, nextValue, obtainPoidBlock, obtainPoidBlock, requiresRepository, reserveBlock

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UUIDHexPoidGenerator

public UUIDHexPoidGenerator(java.lang.String name,
                            java.util.Properties props)

Constructor.

Parameters:

name - Symbolic name for this generator

props - Properties controlling its behaviour

Method Detail

getIdentifier

protected java.lang.String getIdentifier()

Create an identifier with the form "IIIIIIIIJJJJJJJJHHHHLLLLLLLLCCCC". Where IIIIIIII is the IP address, JJJJJJJJ is something unique across JVMs, HHHH is the High Time, LLLLLLLL is the low time, and CCCC is a count.

Specified by:

getIdentifier in class AbstractUIDPoidGenerator

Returns:

The identifier